#photos {
    /* Prevent vertical gaps */
    line-height: 0;
    
    -webkit-column-count: 5;
    -webkit-column-gap:   0px;
    -moz-column-count:    5;
    -moz-column-gap:      0px;
    column-count:         5;
    column-gap:           0px;
 }
 
.img-clz{
   /* Just in case there are inline attributes */
   width: 100% !important;
   height: auto !important;
 }
 
 @media (max-width: 1200px) {
   #photos {
   -moz-column-count:    4;
   -webkit-column-count: 4;
   column-count:         4;
   }
 }
 @media (max-width: 1000px) {
   #photos {
   -moz-column-count:    3;
   -webkit-column-count: 3;
   column-count:         3;
   }
 }
 @media (max-width: 800px) {
   #photos {
   -moz-column-count:    2;
   -webkit-column-count: 2;
   column-count:         2;
   }
 }
 @media (max-width: 400px) {
   #photos {
   -moz-column-count:    1;
   -webkit-column-count: 1;
   column-count:         1;
   }
 }
 
 body {
   margin: 0;
   padding: 0;
 }